Endress+Hauser Nivotester FTW325 Instrucciones De Operación página 42

en - Trouble-shooting
42
Fault Reason
Does not No power
switch (green LED does not light up)
Electronic defect
Contacts welded together (after
short-circuit)
Measuring transmitter defective
Switches Incorrect setting of change-over
incorrectly switch for limit signal in FTW325
Permanent Interrupt or short-circuit line to
alarm signal measuring transmitter
Measuring transmitter electronics
defective
Nivotester defective
Remedy
Check power
Replace FTW325
Replace FTW325;
connect a fuse into contactor circuit
Replace measuring transmitter
Correctly set change-over switch
behind front panel
Check line
Replace measuring transmitter
electronics
Replace FTW325
Endress+Hauser